EP2470135B1 - Wundverbände für reepithelisierung und systeme - Google Patents

Wundverbände für reepithelisierung und systeme Download PDF

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Publication number
EP2470135B1
EP2470135B1 EP10747361.3A EP10747361A EP2470135B1 EP 2470135 B1 EP2470135 B1 EP 2470135B1 EP 10747361 A EP10747361 A EP 10747361A EP 2470135 B1 EP2470135 B1 EP 2470135B1
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EP
European Patent Office
Prior art keywords
tissue
interface layer
moist
facing side
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Revoked
Application number
EP10747361.3A
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English (en)
French (fr)
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EP2470135A1 (de
Inventor
Christopher Brian Locke
Timothy Mark Robinson
Richard Daniel John Coulthard
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KCI Licensing Inc
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KCI Licensing Inc
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Classifications

    • A61F13/05—
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/02—Adhesive plasters or dressings
    • A61F13/0203—Adhesive plasters or dressings having a fluid handling member
    • A61F13/0213—Adhesive plasters or dressings having a fluid handling member the fluid handling member being a layer of hydrocoloid, gel forming material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/02—Adhesive plasters or dressings
    • A61F13/0203—Adhesive plasters or dressings having a fluid handling member
    • A61F13/022—Adhesive plasters or dressings having a fluid handling member having more than one layer with different fluid handling characteristics
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
    • A61M1/91—Suction aspects of the dressing
    • A61M1/915—Constructional details of the pressure distribution manifold
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
    • A61M1/95—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing with sensors for exudate composition
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F2013/00089—Wound bandages
    • A61F2013/0017—Wound bandages possibility of applying fluid
    • A61F2013/00174—Wound bandages possibility of applying fluid possibility of applying pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F2013/00361—Plasters
    • A61F2013/00365—Plasters use
    • A61F2013/00536—Plasters use for draining or irrigating wounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F2013/00361—Plasters
    • A61F2013/00365—Plasters use
    • A61F2013/0054—Plasters use for deep wounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F2013/00361—Plasters
    • A61F2013/00727—Plasters means for wound humidity control
    • A61F2013/00748—Plasters means for wound humidity control with hydrocolloids or superabsorbers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F2013/00361—Plasters
    • A61F2013/00855—Plasters pervious to air or vapours
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
    • A61M1/98—Containers specifically adapted for negative pressure wound therapy
    • A61M1/984—Containers specifically adapted for negative pressure wound therapy portable on the body
    • A61M1/985—Containers specifically adapted for negative pressure wound therapy portable on the body the dressing itself forming the collection container
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains

Definitions

  • the present disclosure relates generally to medical treatment systems and, more particularly but not by way of limitation, to re-epithelialization wound dressings and systems.
  • WO 2004/037334 A1 describes apparatus for cleansing wounds in which irrigant fluid from a reservoir connected to a conformable wound dressing and wound exudate from the dressing are recirculated through a flow path which passes through the dressing and a means for fluid cleansing and back to the dressing.
  • US 2005/085795 describes a bandage for use with a wound.
  • the bandage is connectable to a vacuum source and may include a flexible cover positioned over the wound.
  • a re-epithelialization dressing for use with reduced pressure to treat a wound site.
  • the dressing comprises: a moist tissue-interface layer for disposing against the wound site, the moist tissue-interface layer providing a moisture balance, the moist tissue-interface layer comprising a hydrogel layer and having a first side and a second, tissue-facing side, and wherein a plurality of apertures are formed through the moist tissue-interface layer; a manifold member for distributing reduced pressure, the manifold member having a first side and a second, tissue-facing side, wherein the manifold member is a porous foam; a sealing member, the sealing member having a first side and a second, tissue-facing side. The manifold member is disposed between the sealing member and the moist tissue-interface layer.
  • a system for promoting re-epithelialization of a wound includes a re-epithelialization wound dressing.
  • the re-epithelialization wound dressing comprises: a moist tissue-interface layer for disposing against adjacent to the wound and operable to provide a moisture balance, the moist tissue-interface layer comprising a hydrogel layer and having a first side and a second, tissue-facing side, and wherein a plurality of apertures are formed through the moist tissue-interface layer, a manifold member for distributing reduced pressure, the manifold member having a first side and a second, tissue-facing side, wherein the manifold member is a porous foam, a sealing member, the sealing member having a first side and a second, tissue-facing side, and wherein the manifold member is disposed between the sealing member and the moist tissue-interface layer; and a reduced-pressure source fluidly coupled to the manifold member.
  • a wound treatment system 100 which includes a re-epithelialization dressing 102
  • the re-epithelialization dressing 102 is shown deployed for treatment on a tissue site 104 and in particular a wound 106, or wound site.
  • the wound 106 is shown extending through epidermis 108 and into subcutaneous tissue 110.
  • the tissue site 104 may be the bodily tissue of any human, animal, or other organism, including bone tissue, adipose tissue, muscle tissue, dermal tissue, vascular tissue, connective tissue, cartilage, tendons, ligaments, or any other tissue.
  • the wound treatment system 100 with the re-epithelialization dressing 102 promotes re-epithelialization of the wound 106 and may encourage migration of wound edges 112.
  • the device or devices 124 that may be fluidly coupled to the reduced-pressure delivery conduit 116 include, for example, without limitation, a fluid reservoir (or collection member, to hold exudates and other fluids removed), a pressure-feedback device, a volume detection system, a blood detection system, an infection detection system, a flow monitoring system, a temperature monitoring system, or other device.
  • the reduced-pressure source 120 provides reduced pressure as a part of the wound treatment system 100.
  • reduced pressure generally refers to a pressure less than the ambient pressure at the tissue site 104 that is being subjected to treatment. In most cases, this reduced pressure will be less than the atmospheric pressure at which the patient is located. Alternatively, the reduced pressure may be less than a hydrostatic pressure of tissue at the tissue site 104.
  • vacuum and “negative pressure” may be used to describe the pressure applied to the tissue site, the actual pressure applied to the tissue site may be significantly more than the pressure normally associated with a complete vacuum. Unless otherwise indicated, values of pressure stated herein are gauge pressures.
  • the reduced pressure delivered by the reduced-pressure source 120 may be constant or varied (patterned or random) and may be delivered continuously or intermittently.
  • the reduced-pressure source 120 may be a battery-powered, reduced-pressure generator. This facilitates application in the operating room and provides mobility and convenience for the patient during the rehabilitation phase.
  • Other sources of reduced pressure may be utilized, such as V.A.C. ® therapy unit, which is available from KCI of San Antonio, Texas, wall suction, or a mechanical unit.
  • the reduced pressure developed by the reduced-pressure source 120 is delivered through the reduced-pressure delivery conduit 116, or medical conduit or tubing, to the reduced-pressure connector 114.
  • An interposed hydrophobic membrane filter may be interspersed between the reduced-pressure delivery conduit 116 and the reduced-pressure source 120.
  • the reduced-pressure source may be contained within the re-epithelialization dressing 102 and may be, for example, a micro-pump.
  • the re-epithelialization dressing 102 may include a plurality of layers or materials.
  • the re-epithelialization dressing 102 may include a moist tissue-interface layer 126, a support layer 128, a manifold member 130, and a sealing member 132.
  • the sealing member 132 may be formed with a connector aperture 134 through which at least a portion of the reduced-pressure connector 114 extends.
  • the reduced-pressure connector 114 is shown disposed in part between the sealing member 132 and the manifold member 130 and with a portion extending through the connector aperture 134.
  • the re-epithelialization dressing 102 may have additional layers or fewer layers and the layers may be placed in differing combinations in some embodiments.
  • the moist tissue-interface layer 126 has a first side 136 and a second, tissue-facing side 138.
  • the moist tissue-interface layer 126 is formed with a first plurality of apertures 140, which may take any shape.
  • the first plurality of apertures 140 extend through the moist tissue-interface layer 126.
  • the first plurality of apertures 140 may be formed with a laser, punched, drilled, or formed by casting, or any other technique.
  • the first plurality of apertures 140 may be formed with a uniform pattern or may be random and may have uniform or varied diameters.
  • the diameter of the first plurality of apertures 140 may also be selected so that when reduced pressure is applied and saturation occurs (at least in some embodiments), the first plurality of apertures 140 will not firmly collapse and seal but will become restricted to allow liquid to pass but to generally restrict the passing of gases through the first plurality of apertures 140.
  • the first plurality of apertures 140 may be sized to allow the first plurality of apertures 140 to close completely and firmly under the influence of reduced pressure.
  • the moist tissue-interface layer 126 may be made from numerous materials.
  • the moist tissue-interface layer 126 may be, for example, a water-based material, such as a hydrogel or hydrocolloid.
  • the material from which the moist tissue-interface layer 126 is formed provides a fluid balance, or equilibrium, with respect to a desired moist condition.
  • the material may provide moisture when needed (i.e., the tissue site 104 is dry) and will absorb moisture when needed (i.e., excessive moisture exists at the tissue site 104 or the tissue site 104 is substantially wet).
  • the second, tissue-facing side 138 may be a relatively smooth surface as compared to a micro-strain inducing material, such as an open-cell foam.
  • the relatively smooth surface of the second, tissue-facing side 138 helps to promote (or at least not hinder) cell migration.
  • the relatively smooth surface of the second, tissue-facing side 138 may create little or no local micro-strain.
  • the moist environment provided by the moist tissue-interface layer 126, fluid management of the first plurality of apertures 140, and the relatively smooth surface of the second, tissue-facing side 138 may encourage re-epithelialization of the wound 106.
  • the moist tissue-interface layer 126 may be used for other materials, such as a very dense hydrophilic foam (e.g., a hydrophilic closed cell foam); a film-coated, perforated, non-woven material; a hydrogel-impregnated foam; a hydroactive dressing material, or other material.
  • the hydrogel-impregnated foam may be particularly well suited for deeper wounds or difficult shapes.
  • the moist tissue-interface layer 126 may be perforated or cut into sections that allow removal of one or more portions of the moist tissue-interface layer 126 in order to provide reduced pressure to a portion or the tissue site 104. An opening created by the removed section may help with a highly exudating wound or may promote granulation if desired in an area of the wound 106.
  • the moist tissue-interface layer 126 also provides a relatively smooth surface against the tissue site 104 that may facilitate (or at least not inhibit) cell migration. In addition to providing a relatively smooth moist surface, the moist tissue-interface layer 126 may be left for extended periods of time against the tissue site 104 without granulation in-growth, infection, or the need for frequent dressing changes.

Claims (11)

  1. Wundverband für Reepithelisierung (102) zur Verwendung mit vermindertem Druck zum Behandeln einer Wundstelle (106), wobei der Wundverband (102) umfasst:
    eine feuchte Gewebe-Grenzflächen-Schicht (126) zum Auflegen auf die Wundstelle (106), wobei die feuchte Gewebe-Grenzflächen-Schicht (126) einen Feuchtigkeitsausgleich bereitstellt, wobei die feuchte Gewebe-Grenzflächen-Schicht (126) eine Hydrogelschicht umfasst und eine erste Seite (136) und eine zweite Gewebe-zugewandte Seite (138) aufweist, und wobei eine Vielzahl von Öffnungen (140) durch die feuchte Gewebe-Grenzflächen-Schicht (126) gebildet worden ist;
    ein Verteilungselement (130) zum Verteilen von vermindertem Druck, wobei das Verteilungselement (130) eine erste Seite (152) und eine zweite Gewebe-zugewandte Seite (154) aufweist, wobei das Verteilungselement (130) ein poröser Schaum ist;
    ein Verschlusselement (132), wobei das Verschlusselement (132) eine erste Seite (158) und eine zweite Gewebe-zugewandte Seite (160) aufweist; und
    wobei das Verteilungselement (130) zwischen dem Verschlusselement (132) und der feuchten Gewebe-Grenzflächen-Schicht (126) angeordnet ist.
  2. Wundverband für Reepithelisierung (102) nach Anspruch 1,
    wobei nachdem die feuchte Gewebe-Grenzflächen-Schicht (126) Fluid unter vermindertem Druck aufgenommen hat, so dass sie getränkt worden ist, die Vielzahl von Öffnungen (140) von einer offenen Position zu einer eingeschränkten Position quillt, und wobei in der eingeschränkten Position die Vielzahl von Öffnungen (140) Flüssigkeit hindurch lassen kann und Durchtritt von Gas einschränkt.
  3. Wundverband für Reepithelisierung (102) nach Anspruch 1, weiterhin umfassend eine Trägerschicht (128) mit einer ersten Seite (144) und einer zweiten Gewebe-zugewandten Seite (146), wobei die zweite Gewebe zugewandte Seite (146) der Trägerschicht (128) benachbart zu der ersten Seite (136) der feuchten Gewebe-Grenzflächen-Schicht (126) angeordnet ist.
  4. Wundverband für Reepithelisierung (102) nach Anspruch 1, weiterhin umfassend eine saugfähige Schicht (162), angeordnet zwischen dem Verteilungselement (130) und dem Verschlusselement (132).
  5. Wundverband für Reepithelisierung (102) nach Anspruch 1,
    wobei die zweite Gewebe-zugewandte Seite (138) der feuchten Gewebe-Grenzflächen-Schicht (126) auf der Wundstelle (106) angeordnet ist;
    wobei die zweite Gewebe zugewandte Seite (154) der Verteilung (130) benachbart zu der ersten Seite (136) der feuchten Gewebe-Grenzflächen-Schicht (126) angeordnet ist; wobei die zweite Gewebe zugewandte Seite (160) des Verschlusselements (132) benachbart zu der ersten Seite (152) des Verteilungselements (130) angeordnet ist; und wobei die Vielzahl von Öffnungen (140) in der feuchten Gewebe-Grenzflächen-Schicht (126) um mindestens einen Millimeter zwischen Zentren (141) beabstandet sind.
  6. System zum Fördern der Reepithelisierung einer Wunde (106), wobei das System umfasst:
    einen Reepithelisierungs-Wundverband (102), umfassend:
    eine feuchte Gewebe-Grenzflächen-Schicht (126) zum Auflegen auf die Wunde (106) und funktionsbereit zum Bereitstellen eines Feuchtigkeitsausgleichs, wobei die feuchte Gewebe-Grenzflächen-Schicht (126) eine Hydrogelschicht umfasst und eine erste Seite (136) und eine zweite Gewebe-zugewandte Seite (140) aufweist, und wobei eine Vielzahl von Öffnungen (140) durch die feuchte Gewebe-Grenzflächen-Schicht (126) gebildet worden sind,
    ein Verteilungselement (130) zum Verteilen von vermindertem Druck, wobei das Verteilungselement (130) eine erste Seite (152) und eine zweite Gewebe-zugewandte Seite (154) aufweist, wobei das Verteilungselement (130) ein poröser Schaum ist,
    ein Verschlusselement (132), wobei das Verschlusselement (132) eine erste Seite (158) und eine zweite Gewebe-zugewandte Seite (160) aufweist, und
    wobei das Verteilungselement (130) zwischen dem Verschlusselement (132) und de feuchten Gewebe-Grenzflächen-Schicht (126) angeordnet ist; und
    eine Quelle für verminderten Druck (120) fluid-gekoppelt mit dem Verteilungselement (130).
  7. System nach Anspruch 6,
    wobei nachdem die feuchte Gewebe-Grenzflächen-Schicht Fluid unter vermindertem Druck aufgenommen hat, so dass sie getränkt geworden ist, die Vielzahl von Öffnungen (140) von einer offenen Position zu einer eingeschränkten Position quillt, und
    wobei in der eingeschränkten Position die Vielzahl von Öffnungen (140) Flüssigkeit hindurch lassen kann und Durchtritt von Gas einschränkt.
  8. System nach Anspruch 6, weiterhin umfassend eine Trägerschicht (128), die eine erste Seite (144) und eine zweite Gewebe-zugewandte Seite (146) aufweist, wobei die zweite Gewebe zugewandte Seite (146) der Trägerschicht (128) benachbart zu der ersten Seite (136) der feuchten Gewebe-Grenzflächen-Schicht (126) angeordnet ist.
  9. System nach Anspruch 6, weiterhin umfassend eine saugfähige Schicht (162), angeordnet zwischen dem Verteilungselement (130) und dem Verschlusselement (132).
  10. Wundverband für Reepithelisierung (102) nach Anspruch 1, wobei das Verteilungselement (130) ein netzartiger offen-zelliger Schaum ist.
  11. System nach Anspruch 6, wobei das Verteilungselement (130) ein netzartiger offen-zelliger Schaum ist.
EP10747361.3A 2009-08-27 2010-08-17 Wundverbände für reepithelisierung und systeme Revoked EP2470135B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US23748609P 2009-08-27 2009-08-27
US12/857,100 US8690844B2 (en) 2009-08-27 2010-08-16 Re-epithelialization wound dressings and systems
PCT/US2010/045735 WO2011028407A1 (en) 2009-08-27 2010-08-17 Re-epithelialization wound dressings and systems

Publications (2)

Publication Number Publication Date
EP2470135A1 EP2470135A1 (de) 2012-07-04
EP2470135B1 true EP2470135B1 (de) 2016-10-12

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EP10747361.3A Revoked EP2470135B1 (de) 2009-08-27 2010-08-17 Wundverbände für reepithelisierung und systeme

Country Status (8)

Country Link
US (3) US8690844B2 (de)
EP (1) EP2470135B1 (de)
JP (1) JP5911066B2 (de)
CN (1) CN102481209B (de)
AU (1) AU2010289910C1 (de)
CA (1) CA2771522C (de)
TW (1) TW201113053A (de)
WO (1) WO2011028407A1 (de)

Cited By (17)

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US10660994B2 (en) 2012-03-12 2020-05-26 Smith & Nephew Plc Reduced pressure apparatus and methods
USD898925S1 (en) 2018-09-13 2020-10-13 Smith & Nephew Plc Medical dressing
US10898388B2 (en) 2015-04-27 2021-01-26 Smith & Nephew Plc Reduced pressure apparatuses and methods
US11096831B2 (en) 2016-05-03 2021-08-24 Smith & Nephew Plc Negative pressure wound therapy device activation and control
US11116669B2 (en) 2016-08-25 2021-09-14 Smith & Nephew Plc Absorbent negative pressure wound therapy dressing
US11123471B2 (en) 2017-03-08 2021-09-21 Smith & Nephew Plc Negative pressure wound therapy device control in presence of fault condition
US11160915B2 (en) 2017-05-09 2021-11-02 Smith & Nephew Plc Redundant controls for negative pressure wound therapy systems
US11173240B2 (en) 2016-05-03 2021-11-16 Smith & Nephew Plc Optimizing power transfer to negative pressure sources in negative pressure therapy systems
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US11285047B2 (en) 2016-04-26 2022-03-29 Smith & Nephew Plc Wound dressings and methods of use with integrated negative pressure source having a fluid ingress inhibition component
US11305047B2 (en) 2016-05-03 2022-04-19 Smith & Nephew Plc Systems and methods for driving negative pressure sources in negative pressure therapy systems
US11096831B2 (en) 2016-05-03 2021-08-24 Smith & Nephew Plc Negative pressure wound therapy device activation and control
US11896465B2 (en) 2016-05-03 2024-02-13 Smith & Nephew Plc Negative pressure wound therapy device activation and control
US11173240B2 (en) 2016-05-03 2021-11-16 Smith & Nephew Plc Optimizing power transfer to negative pressure sources in negative pressure therapy systems
US11648152B2 (en) 2016-08-25 2023-05-16 Smith & Nephew Plc Absorbent negative pressure wound therapy dressing
US11116669B2 (en) 2016-08-25 2021-09-14 Smith & Nephew Plc Absorbent negative pressure wound therapy dressing
US11564847B2 (en) 2016-09-30 2023-01-31 Smith & Nephew Plc Negative pressure wound treatment apparatuses and methods with integrated electronics
US11123471B2 (en) 2017-03-08 2021-09-21 Smith & Nephew Plc Negative pressure wound therapy device control in presence of fault condition
US11160915B2 (en) 2017-05-09 2021-11-02 Smith & Nephew Plc Redundant controls for negative pressure wound therapy systems
US11564845B2 (en) 2017-09-13 2023-01-31 Smith & Nephew Plc Negative pressure wound treatment apparatuses and methods with integrated electronics
US11701265B2 (en) 2017-09-13 2023-07-18 Smith & Nephew Plc Negative pressure wound treatment apparatuses and methods with integrated electronics
US11497653B2 (en) 2017-11-01 2022-11-15 Smith & Nephew Plc Negative pressure wound treatment apparatuses and methods with integrated electronics
US11554203B2 (en) 2017-11-01 2023-01-17 Smith & Nephew Plc Negative pressure wound treatment apparatuses and methods with integrated electronics
US11707564B2 (en) 2017-11-01 2023-07-25 Smith & Nephew Plc Safe operation of integrated negative pressure wound treatment apparatuses
USD999914S1 (en) 2018-09-13 2023-09-26 Smith & Nephew Plc Medical dressing
USD898925S1 (en) 2018-09-13 2020-10-13 Smith & Nephew Plc Medical dressing

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US10052236B2 (en) 2018-08-21
WO2011028407A1 (en) 2011-03-10
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CA2771522A1 (en) 2011-03-10
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US11083629B2 (en) 2021-08-10
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TW201113053A (en) 2011-04-16
US20180318138A1 (en) 2018-11-08

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